Add lualine support (#21)

* Add lualine support

Signed-off-by: lamcw <thomas@lamcw.com>

* Give colors meaningful name

Signed-off-by: lamcw <thomas@lamcw.com>

Author: lamcw

README.md

@@ -88,6 +88,17 @@ add one of the following lines to your `.vimrc`:
 let g:lightline = { 'colorscheme': 'challenger_deep'}
 ```
 
+### Lualine Theme ###
+
+Challenger Deep also supports [lualine.vim](https://github.com/nvim-lualine/lualine.nvim). To enable the colorscheme,
+add the following lines to your `init.lua`:
+
+```lua
+require'lualine'.setup {
+  options = { theme = 'challenger_deep' }
+}
+```
+
 ### Troubleshooting ###
  If you are running vim inside tmux with the alacritty terminal, make sure to set `default-terminal` to `xterm-256color` in your tmux config (see [this issue](https://github.com/challenger-deep-theme/vim/issues/18) for more details:
 

lua/lualine/themes/challenger_deep.lua

@@ -0,0 +1,46 @@
+-- =============================================================================
+-- Genarated by lightline to lualine theme converter
+--   https://gist.github.com/shadmansaleh/000871c9a608a012721c6acc6d7a19b9
+-- License: MIT License
+-- =============================================================================
+
+local colors = {
+  red            = "#ff8080",
+  green          = "#95ffa4",
+  yellow         = "#ffe9aa",
+  cyan           = "#aaffe4",
+  white          = "#F3F3F3",
+  dark_red       = "#ff5458",
+  dark_green     = "#62d196",
+  dark_yellow    = "#ffb378",
+  dark_cyan      = "#63f2f1",
+  dark_asphalt   = "#565575",
+  asphalt_subtle = "#100E23",
+}
+
+local challenger_deep = {
+  normal = {
+    b = { fg = colors.asphalt_subtle, bg = colors.dark_cyan },
+    a = { fg = colors.asphalt_subtle, bg = colors.cyan , gui = "bold", },
+    c = { fg = colors.white, bg = colors.asphalt_subtle },
+  },
+  visual = {
+    b = { fg = colors.asphalt_subtle, bg = colors.dark_yellow },
+    a = { fg = colors.asphalt_subtle, bg = colors.yellow , gui = "bold", },
+  },
+  inactive = {
+    b = { fg = colors.dark_asphalt, bg = colors.asphalt_subtle },
+    a = { fg = colors.dark_asphalt, bg = colors.asphalt_subtle , gui = "bold", },
+    c = { fg = colors.dark_asphalt, bg = colors.asphalt_subtle },
+  },
+  replace = {
+    b = { fg = colors.asphalt_subtle, bg = colors.dark_green },
+    a = { fg = colors.asphalt_subtle, bg = colors.green , gui = "bold", },
+  },
+  insert = {
+    b = { fg = colors.asphalt_subtle, bg = colors.dark_red },
+    a = { fg = colors.asphalt_subtle, bg = colors.red , gui = "bold", },
+  },
+}
+
+return challenger_deep